Observation information
- date-obs: 2018-07-30
- time-obs: 00:13:31.392100000
- date-end: 2018-07-30
- time-end: 02:44:03.388800000
- obs_id: T02_073T01_9000002260
- exposure: 6073.44321844
- sourceid: Cygnus X-1
- observer: mithunnps
- ra_pnt: 299.563
- dec_pnt: 35.202
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_073T01_9000002260_15333cztM0_level2.evt
| modeM0/AS1T02_073T01_9000002260_15333cztM0_level2_quad_clean.evt
|
| Size (bytes) | 629,720,640 | 121,412,160 |
| Size | 600.5 MB
| 115.8 MB
|
| Events in quadrant A | 3,939,995 | 783,904 |
| Events in quadrant B | 4,228,321 | 796,035 |
| Events in quadrant C | 4,061,787 | 786,154 |
| Events in quadrant D | 6,271,412 | 727,139 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 170 | 0 |
| B | 0 | 170 | 0 |
| C | 0 | 170 | 0 |
| D | 0 | 170 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17477 | 3 |
| B | 0 | 18074 | 2 |
| C | 0 | 17594 | 2 |
| D | 0 | 24729 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 7 | 0 |
| B | 0 | 7 | 0 |
| C | 0 | 7 | 0 |
| D | 0 | 7 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 8407 | 109 | 1.296539% |
| B | 8407 | 209 | 2.486024% |
| C | 8407 | 61 | 0.725586% |
| D | 8407 | 755 | 8.980611% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
| Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
| A | 9033 | 8410 | 0 | 0 | 0.00% | 0.00% |  |
| B | 9033 | 8410 | 32 | 32 | 0.35% | 0.38% |  |
| C | 9033 | 8410 | 0 | 0 | 0.00% | 0.00% |  |
| D | 9033 | 8410 | 801 | 801 | 8.87% | 9.52% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
| Pixel properties |
Quadrant properties |
| Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
| A | 4 | 2 | 19110 | 88.26 | 1015 | 993 | 205.3 |
| A | 2 | 79 | 17833 | 82.04 | 1015 | 993 | 205.3 |
| A | 0 | 226 | 8657 | 37.34 | 1015 | 993 | 205.3 |
| B | 10 | 16 | 140088 | 707.89 | 1014 | 986 | 196.5 |
| B | 3 | 64 | 85935 | 432.31 | 1014 | 986 | 196.5 |
| B | 0 | 189 | 39115 | 194.04 | 1014 | 986 | 196.5 |
| C | 3 | 233 | 161199 | 693.64 | 995 | 999 | 231.0 |
| C | 8 | 128 | 14901 | 60.19 | 995 | 999 | 231.0 |
| C | 8 | 112 | 7334 | 27.43 | 995 | 999 | 231.0 |
| D | 13 | 122 | 1897953 | 8082.5 | 971 | 942 | 234.7 |
| D | 2 | 33 | 651167 | 2770.38 | 971 | 942 | 234.7 |
| D | 10 | 70 | 34581 | 143.32 | 971 | 942 | 234.7 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
| Quadrant A |
 |
 |
Quadrant B |
| Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
| Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
| Parameter |
Plot |
| CZT HV Monitor |  |
| D_VDD |  |
| Temperature 1 |  |
| Veto HV Monitor |  |
| Veto LLD |  |
| Alpha Counter |  |
| _CPM_Rate |  |
| CZT Counter |  |
| +2.5 Volts monitor |  |
| +5 Volts monitor |  |
| _ROLL_ROT |  |
| _Roll_DEC |  |
| _Roll_RA |  |
| Veto Counter |  |